Texas Instruments LMR34206-Q1 Ultra-Small Step-Down Converters
Texas Instruments LMR34206-Q1 Ultra-Small Synchronous Step-Down Converters offer integrated high-side and low-side power MOSFETs and a wide input voltage range of 4.2V to 42V. The LMR34206-Q1 provides optimal efficiency and output voltage accuracy using peak-current-mode control. The device offers flexibility via precision enable, allowing a direct connection to the wide input voltage or precise control over device start-up and shutdown. The requirement for an external supervisor is eliminated using the power-good flag with built-in filtering and delay, resulting in a true indication of system status.
The LMR34206-Q1 is available in a HotRod™ package, which enables low EMI, higher efficiency, and a small package-to-die ratio. The device requires few external components and has a pinout designed for a simple PCB layout. The LMR34206-Q1 small solution size and feature set are designed to simplify implementation for a wide range of end equipment. The Texas Instruments LMR34206-Q1 devices are AEC-Q100 qualified for automotive applications.
Features
- AEC-Q100-qualified for automotive applications
- Temperature grade 1 (–40°C to +125°C, TA)
- Designed for automotive applications
- Junction temperature range of –40°C to +150°C
- Protection features: thermal shutdown, input undervoltage lockout, cycle-by-cycle current limit, hiccup short-circuit protection
- Spread-spectrum frequency modulation
- HotRod™ package enables low EMI and minimized switch node ringing
- 0.2V dropout with 0.6A load (typical)
- ±1.5% reference voltage tolerance
- 3.3V, 5V fixed-output voltage options
- Suited for scalable power supplies
- Pin compatible with
- LMR36015/06-Q1 (60V, 0.6A or 1.5A)
- LMR33620/30-Q1 (36V, 2A or 3A)
- 2.1MHz frequency option
- Integration reduces solution size and cost
- Small, 2mm × 3mm VQFN package with wettable flanks
- Few external components
- Low power dissipation across the load spectrum
- Increased light load efficiency in PFM
- Low operating quiescent current of 24µA
- Pin compatible with
Applications
- ADAS camera module
- Head-up display
- Body control module
- General-purpose wide VIN power supplies
Functional Block Diagram
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Publicado: 2019-07-29
| Actualizado: 2023-10-10